Q. No. 4) (10) Use the separation of variables and represent the pair of ordinary differential equations generated by the following partial differential equations + = =0 ax дх ду Solve the generated differential equations by considering the constant <0. Answer: Paste pictures of solution here. Q. No. 5) Find the annihilator operator of the following differential equations, d'u +8u ax-5+Se (0)=-5,'(0)=3, "(0)=-4 I (10) where, a = maneric digits of your registration number, ß-a-1. Also find the solution of the differential equations by using annihilator approach and use super-position concept to represent the solution of the problem. Answer: Paste pictures of solution here.